Packaging material for photosensitive materials

Details Packaging material for photosensitive materials Packaging material for photosensitive materials

1989-02-22

1991-12-17

Buffalow, Edith L.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428500, 428516, 428 357, 525240, B32B 702, C08L 2300

Patent

active

050734377

ABSTRACT:
A packaging material for photosensitive materials comprising a combination of a linear very low density polyethylene resin and a high density polyethylene resin as the resin components. The linear very low density polyethylene resin improves flexibility, low temperature resistance, heat sealing properties and physical strength such as impact puncture strength and tear strength. The polyethylene resin exhibits antiblocking property. The packaging material of the invention is excellent in flexibility, low temperature resistance and impact puncture strength, and blocking does not occur. Since the dispersibility of carbon black is excellent, lump generation troubles and fish eye troubles are rare. Moreover, low temperature heat sealability is excellent.

REFERENCES:
patent: 4576865 (1986-03-01), Akao
patent: 4579781 (1986-04-01), Akao
patent: 4584234 (1986-04-01), Hirose et al.
patent: 4661395 (1987-04-01), Akao
patent: 4710359 (1987-10-01), Akao
patent: 4894264 (1990-01-01), Akao et al.
patent: 4906517 (1990-03-01), Akao et al.

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